ASAN Error - CPR 1.11.2

[amikhail48]

Description

Observing address sanitizer error in cpr::Session::prepareHeader(). See ASAN backtrace:

=================================================================
==9562==ERROR: AddressSanitizer: attempting free on address which was not malloc()-ed: 0x0001033dd470 in thread T0
    #0 0x000103d5734d in _ZdlPv+0x7d (libclang_rt.asan_osx_dynamic.dylib:x86_64h+0xad34d)
    #1 0x00010320c7c1 in cpr::Session::prepareHeader()+0x281 (libcpr.1.dylib:x86_64+0x1d7c1)
    #2 0x00010320fc06 in cpr::Session::prepareCommonShared()+0xd6 (libcpr.1.dylib:x86_64+0x20c06)
    #3 0x00010321098f in cpr::Session::prepareCommon()+0x1f (libcpr.1.dylib:x86_64+0x2198f)
    #4 0x00010321b154 in cpr::Session::Post()+0x14 (libcpr.1.dylib:x86_64+0x2c154)
    #5 0x0001021d6e51 in cpr::Response cpr::Post<cpr::Url, std::__1::map<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>>, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>>, cpr::CaseInsensitiveCompare, std::__1::allocator<std::__1::pair<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>>>>>, cpr::Body, cpr::Timeout>(cpr::Url&&, std::__1::map<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>>, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>>, cpr::CaseInsensitiveCompare, std::__1::allocator<std::__1::pair<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>>>>>&&, cpr::Body&&, cpr::Timeout&&)+0x171

Example/How to Reproduce

1. Create a cpr::Post request to any URL with {"Content-Type", "application/json"} in cpr::Header
2. Build with ASAN configuration
   ASAN_OPTIONS=detect_leaks=1 gcc -g -O1 -fsanitize=address -DADDRESS_SANITIZER -fno-omit-frame-pointer <program>
3. Observe error

Possible Fix

No response

Where did you get it from?

GitHub (branch e.g. master)

Additional Context/Your Environment

• OS: macOS
• Version: Sequoia 15.5